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ATE307362T1 - SYSTEM AND METHOD FOR CAPACITIVE CAPTURE OF FINGERPRINTS BY SCRUBING - Google Patents

SYSTEM AND METHOD FOR CAPACITIVE CAPTURE OF FINGERPRINTS BY SCRUBING

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Publication number
ATE307362T1
ATE307362T1AT01989927TAT01989927TATE307362T1AT E307362 T1ATE307362 T1AT E307362T1AT 01989927 TAT01989927 TAT 01989927TAT 01989927 TAT01989927 TAT 01989927TAT E307362 T1ATE307362 T1AT E307362T1
Authority
AT
Austria
Prior art keywords
image
sensor
rate
signals
finger
Prior art date
Application number
AT01989927T
Other languages
German (de)
Inventor
Fred G Benkley Iii
Original Assignee
Validity Sensors Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Validity Sensors IncfiledCriticalValidity Sensors Inc
Application grantedgrantedCritical
Publication of ATE307362T1publicationCriticalpatent/ATE307362T1/en

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Abstract

A fingerprint sensing system includes an image sensor, a rate sensor and a sensor circuit. The image sensor includes a linear array of capacitive sensors for capacitive sensing of ridge peaks and ridge valleys of a fingerprint on a swiped finger. The rate sensor senses the speed of the finger as it is swiped across the image sensor. The sensor circuit supplies image drive signals to the image sensor and detects image signals in response to the drive signals. The sensor circuit supplies rate drive signals to the rate sensor and detects rate signals in response to the rate drive signals. The sensor circuit further coordinates the image signals and the rate signals to provide a fingerprint image. The image sensor may be configured as an image pickup plate and multiple image drive plates formed on a substrate, such as a flexible printed circuit board or other flexible substrate which may conform to the shape of the finger.
AT01989927T2000-12-052001-12-05 SYSTEM AND METHOD FOR CAPACITIVE CAPTURE OF FINGERPRINTS BY SCRUBINGATE307362T1 (en)

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
US25137100P2000-12-052000-12-05
PCT/US2001/046525WO2002047018A2 (en)2000-12-052001-12-05Swiped aperture capacitive fingerprint sensing systems and methods

Publications (1)

Publication NumberPublication Date
ATE307362T1true ATE307362T1 (en)2005-11-15

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ID=22951670

Family Applications (1)

Application NumberTitlePriority DateFiling Date
AT01989927TATE307362T1 (en)2000-12-052001-12-05 SYSTEM AND METHOD FOR CAPACITIVE CAPTURE OF FINGERPRINTS BY SCRUBING

Country Status (6)

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US (2)US7099496B2 (en)
EP (1)EP1374146B1 (en)
AT (1)ATE307362T1 (en)
AU (1)AU2002228809A1 (en)
DE (2)DE60131205T2 (en)
WO (1)WO2002047018A2 (en)

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DE60114241D1 (en)2005-11-24
DE60131205T2 (en)2008-08-14
US7099496B2 (en)2006-08-29
EP1374146B1 (en)2005-10-19
US20040081339A1 (en)2004-04-29
WO2002047018A2 (en)2002-06-13
US20030035570A1 (en)2003-02-20
DE60131205D1 (en)2007-12-13
HK1061912A1 (en)2004-10-08
EP1374146A2 (en)2004-01-02
US7146024B2 (en)2006-12-05
HK1088420A1 (en)2006-11-03
AU2002228809A1 (en)2002-06-18
DE60114241T2 (en)2006-07-13

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